Which type of macro is primarily associated with controlling loops within workflows?

The correct choice, Iterative Macros, is specifically designed to handle workflows that require looping through data multiple times. This is particularly useful when there's a need for repeated processing of data until a certain condition is met, or when cumulative calculations are necessary.

Iterative Macros allow for the execution of a specific sequence of operations repeatedly while altering parameters or inputs based on intermediate results obtained in each iteration. This capability makes them essential for complex calculations or when working with algorithms that depend on refining outputs dynamically through successive iterations.

In contrast, Standard Macros serve to encapsulate routine tasks without the looping functionality. Batch Macros process batches of data in a single run but are not designed for real-time conditional iteration. Adaptive Macros provide flexible outputs based on varying data inputs but do not focus on controlling loops or iterative processes. Thus, the focus on controlling loops distinguishes Iterative Macros from the other types, underscoring their specialized function in managing workflow iterations effectively.